Home / 68,185.36-102,322.05-28,742.68

Finding the Fourth Proportional to 68,185.36, 102,322.05 and 28,742.68

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Solution

The fourth proportional to 68,185.36, 102,322.05 and 28,742.68 is: 43,132.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,185.36 : 102,322.05 = 28,742.68 : x
  2. Step 2: Convert to fraction form
    68,185.36/102,322.05 = 28,742.68/x
  3. Step 3: Cross multiply
    68,185.36x = 102,322.05 × 28,742.68
  4. Step 4: Simplify right side
    68,185.36x = 2,941,009,940.09
  5. Step 5: Solve for x
    x = 2,941,009,940.09/68,185.36
  6. Step 6: Final answer
    x = 43,132.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.